Cook diced onions with thyme until they’re soft and golden, then fold them into sour cream and mayonnaise. The onions give this cold dip its sweetness, Worcestershire sauce adds a savory note, and a sprinkle of chives finishes the bowl. Serve it with celery, carrots or ridged chips.
Cook two diced onions in olive oil with fresh thyme until golden brown, about 20–30 minutes. Let them cool, then stir them into 1¼ cups sour cream, ½ cup mayonnaise and 1 tablespoon Worcestershire sauce. Season lightly, cover and chill for at least an hour. The amounts are adapted from Food Network Kitchen’s Caramelized Onion Dip. The onions may take longer depending on the pan, the heat and how much moisture they release.
Recipe transparency: This is a source-based editorial adaptation, not a claim that Vegetable Dips independently kitchen-tested or measured this batch. The ingredient proportions, method and 8-portion reference are attributed to the source below.
Why choose homemade French onion dip?
As the onions cook, they soften, shrink and turn sweet. You’ll still get little pieces of onion in each scoop, with a browned flavor that comes from cooking them slowly.
Short on time? Our French Onion Dip with Onion Soup Mix takes a packet of seasoning and sour cream. If you have fresh onions and prefer a yogurt base, try Greek Yogurt French Onion Dip.
Homemade French Onion Dip Ingredients
- 2 medium onions, diced: Yellow onions are a practical default for slowly browning, although the source simply specifies onions. Keep the pieces fairly even so they cook at a similar pace.
- 3 tablespoons extra-virgin olive oil: For softening and browning the onions.
- 1 tablespoon chopped fresh thyme: Gives the sweet onions a savory, herbal edge.
- 1¼ cups sour cream: Provides a tangy, thick base.
- ½ cup real mayonnaise: Makes the base rich and easy to scoop.
- 1 tablespoon Worcestershire sauce: Adds savory depth. Standard products often contain anchovies; choose a suitable version if vegetarian or avoiding fish.
- Salt and black pepper: Use to taste rather than adding a fixed large amount.
- 1 tablespoon chopped fresh chives: For a fresh green finish just before serving.
Cut carrots, celery, cucumbers and bell peppers into pieces that are easy to hold. Add a handful of sturdy ridged chips if you like.
How to Make French Onion Dip From Scratch
- Dice and start the onions. Heat olive oil in a broad skillet over medium heat. Add the diced onions and chopped thyme; stir so the pieces are lightly coated.
- Cook until golden. Stir periodically for roughly 20–30 minutes, reducing the heat if the onion pieces begin to burn at the edges. The goal is soft golden-brown onions, not brittle or blackened bits.
- Cool the cooked onions. Take the skillet off the heat and spread the onions on a clean plate or shallow dish. Let the steam subside and the onions cool before adding them to the dairy base.
- Mix the creamy base. Stir together sour cream, mayonnaise and Worcestershire sauce in a clean mixing bowl. Add a little salt and black pepper.
- Fold, chill and serve. Fold in the cooled onions until evenly mixed, cover and refrigerate for at least an hour. Stir once more, top with chives and serve cold.
Printable Homemade French Onion Dip Recipe
Homemade French Onion Dip (Caramelized Onions)
Ingredients
Method
- Heat olive oil in a large skillet over medium heat. Add diced onions and fresh thyme. Cook while stirring occasionally until softened and golden brown, about 20–30 minutes. If they darken too quickly, lower the heat. Let the onions cool completely.
- In a mixing bowl, stir together the sour cream, mayonnaise and Worcestershire sauce. Season lightly with salt and freshly ground black pepper.
- Add the fully cooled caramelized onions and mix until evenly distributed. Do not add the hot onions directly to the dairy base.
- Cover and refrigerate for at least 1 hour, or until ready to serve, so the flavors combine. Keep refrigerated.
- Stir briefly and garnish with chopped chives. Serve cold with fresh carrots, celery, cucumber, broccoli or sturdy potato chips.
Notes
What properly caramelized onions should look like
Watch the onions as they cook. They’ll shrink, turn translucent and then turn golden. They’re ready when they’re soft and smell sweet. A wide pan helps moisture escape. If the edges start to scorch while the centers are still firm, lower the heat and stir more often.
Keep the heat low enough for the onions to soften as they brown. If they’re still pale and firm, give them more time. If the edges are turning black, turn the heat down before they taste bitter.
Why you should cool onions before mixing
Let the onions cool before stirring them into the sour cream and mayonnaise. Cover the bowl and put it in the fridge so the dip is ready to serve cold.
Best vegetables and chips to serve
Try the dip with sweet carrots, cucumber spears, celery, bell peppers or small broccoli and cauliflower florets. Pat the vegetables dry after washing, then arrange them around the cold dip.
Ridged potato chips hold up to a thick scoop, and sturdy crackers or toast work too. For a tray with more vegetables, see Best Dips for a Vegetable Tray. If you’d like a second bowl with the same sweet onion flavor, try Caramelized Onion Hummus.
Make-ahead, texture and storage tips
- Make ahead: Food Network Kitchen recommends chilling at least an hour and permits an overnight rest; flavors can mingle as the onions sit in the creamy base.
- Keep cold: Store in a covered container at 40°F (4°C) or below. For parties, serve smaller bowls and replenish from the refrigerator.
- Texture: Finely diced onions give an even spoonful. If a dip seems runny, check whether the onion mixture was cooled and whether added vegetables were patted dry. Our watery-dip guide offers general troubleshooting.
- Don’t over-salt: Worcestershire sauce already contributes a seasoned flavor; taste the finished dip before making adjustments.
- Storage window: Food Network’s referenced recipe states the dip can be made up to three days ahead when stored in an airtight container in the refrigerator. This is not a substitute for checking ingredient freshness or safe handling.
Homemade French onion dip vs. onion soup mix dip
Fresh-onion version: Cook and cool the onions before folding them into the creamy base with thyme and Worcestershire sauce. Let the color and softness of the onions guide you as they cook.
Soup-mix version: Stir a dry packet into sour cream for a quicker bowl. See French Onion Dip with Onion Soup Mix for the amounts.
Dietary and allergy considerations
This dip contains dairy (sour cream) and usually egg (mayonnaise). Traditional Worcestershire sauces often contain anchovies and may vary in gluten or soy content. Read the labels of the exact products you purchase if serving guests with allergies or vegetarian requirements. If you substitute a fish-free Worcestershire-style sauce, the flavor may change.
For cold dairy-based dips, follow CDC food-safety recommendations: don’t leave perishable foods at room temperature for more than two hours, or more than one hour when ambient temperatures are above 90°F (32°C).
Frequently Asked Questions
Can I use red onions instead of yellow onions?
Yes, as a variation, but their color and sweetness differ. The referenced recipe does not require a named onion variety, so adjust cooking by color and tenderness rather than the clock alone.
Can I make homemade French onion dip without a soup packet?
Yes. This recipe uses fresh onions and herbs rather than a packaged onion soup mix. The onions must be cooked before they go into the sour cream mixture.
How long does it take to caramelize onions for dip?
Allow about 20–30 minutes for diced onions, but start checking before the timer goes off. A different pan, heat level or batch of onions can change the timing. Look for soft pieces with a golden-brown color.
Can you make French onion dip the night before?
Yes. The referenced Food Network Kitchen recipe allows a refrigerated overnight rest. Keep the dip covered and cold, and add fresh chives when serving.
Is homemade onion dip vegetarian?
Not necessarily. Worcestershire sauce often contains anchovies. Check the label and select a verified fish-free alternative if you need a vegetarian preparation.
Can I serve it with vegetables instead of chips?
Yes. Crisp carrots, celery, cucumber, bell peppers and broccoli are all suitable, and mixing vegetables with a few chips can make a colorful party platter.
Recipe research and source notes
The base formula and method are adapted from Food Network Kitchen’s Caramelized Onion Dip. The from-scratch approach is also discussed in Alton Brown’s Onion Dip from Scratch, which uses a different caramelization technique. The food safety guidance comes from the CDC. No independent kitchen testing, nutritional measurement, or firsthand taste test is claimed here.
